2. would you expect the analytical results to be higher than, lower than, or the same as the true value under the following conditions, and why? a) weighing a warm crucible b) estimating organic content by combustion at 550ºc of a sludge sample with a high magnesium carbonate content c) estimating the organic content by volatile-solids analysis of a sample containing a large quantity of organic materials having a high vapor pressure d) estimating the organic content of a sample by combustion at 800ºc rather than 550ºc.